MPD: lib/xiph/OggPage.hxx Source File

MPD 0.20.15

OggPage.hxx
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1 /*
2 * Copyright 2003-2017 The Music Player Daemon Project
3 * http://www.musicpd.org
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #ifndef MPD_OGG_PAGE_HXX
21 #define MPD_OGG_PAGE_HXX
22
23 #include "check.h"
24
25 #include <ogg/ogg.h>
26
27 #include <assert.h>
28 #include <string.h>
29 #include <stdint.h>
30
31 static size_t
32 ReadPage(const ogg_page &page, void *_buffer, size_t size)
33 {
34 assert(page.header_len > 0 || page.body_len > 0);
35
36 size_t header_len = (size_t)page.header_len;
37 size_t body_len = (size_t)page.body_len;
38 assert(header_len <= size);
39
40 if (header_len + body_len > size)
41 /* TODO: better overflow handling */
42 body_len = size - header_len;
43
44 uint8_t *buffer = (uint8_t *)_buffer;
45 memcpy(buffer, page.header, header_len);
46 memcpy(buffer + header_len, page.body, body_len);
47
48 return header_len + body_len;
49 }
50
51 #endif
check.h
ReadPage
static size_t ReadPage(const ogg_page &page, void *_buffer, size_t size)
Definition: OggPage.hxx:32